Tokyo
Japan
Long-term weather forecast
Long-term weather forecast
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August weather forecast and Climate
Tokyo, Japan

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A stunning view of the cityscape of Tokyo, Japan, taken at dusk
A stunning view of the cityscape of Tokyo, Japan, taken at dusk
August is the peak of summer and characterized by the highest temperatures of the year. The lowest average reads 23°C (73.4°F) and the highest 29°C (84.2°F), making it the hottest and most oppressive month as the temperatures may go up to 35°C (95°F).
Swimming is pleasurable in August as the ocean is at its warmest, with high temperatures of 26°C (78.8°F) and six hours of daily sunshine. This month records the highest number of crowds on the beaches as well as fully booked accommodations in Tokyo.
Expect afternoon interruptions from the rain for up to seventeen days in August. The rains may be substantial and torrential hence better to keep safe. The rain gauge collects average precipitation of 147.3mm (5.8").
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  • The average high temperature in August: 30.8°C

The warmest month (with the highest average high temperature) is August (30.8°C).
The month with the lowest average high temperature is January (9.6°C).

  • The average low temperature in August: 23°C

The month with the highest average low temperature is August (23°C).
The coldest month (with the lowest average low temperature) is January (0.9°C).

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  • The average humidity in August: 73%

The month with the highest relative humidity is July (77%).
The month with the lowest relative humidity is January (52%).

  • The average rainfall in August: 112.6mm

The wettest month (with the highest rainfall) is May (145.4mm).
The driest month (with the lowest rainfall) is February (58.2mm).

  • The average rainfall days in August: 11 days

The month with the highest number of rainy days is October (13 days).
The month with the lowest number of rainy days is July (8.4 days).

  • The average snowfall in August: 0mm

Months with the highest snowfall are January and February (50mm).
Months with the lowest snowfall are April, May, June, July, August, September, October, November and December (0mm).

  • The average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (3.7 days).
Months with the lowest number of snowfall days are May, June, July, August, September, October and November (0 days).

  • The average sea temperature in August: 25.7°C

The best month for swimming (with the highest average sea temperature) is August (25.7°C).
The coldest month (with the lowest average sea temperature) is February (14°C).

  • The average daylight in August: 13h

The month with the longest days is June (Average daylight: 15h).
Months with shortest days are January, November and December (Average daylight: 10h).

  • The average sunshine in August: 5.5h

The month with most sunshine is January (Average sunshine: 6h).
The month with least sunshine is September (Average sunshine: 4h).

  • The average UV index in August: 10

Months with the highest UV index are June, July and August (UV index 10).
Months with the lowest UV index are January and December (UV index 2).

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